JD -- please forgive a westerner's opinion if you can ... but how far do you normally have to haul your deer? The idea of bring an animal out whole is patently eastern. Here, we skin and quarter 'em, whether deer, antelope or elk, right where they fall, and backpack 'em out in pieces. This year, a friend and I packed out three elk in 10 days, average 2 miles (downhill, as we only hunt elk uphill for that reason!) almost effortlessly. The faster you get the hide off and the parts separated, the better for the meat. You can still age by hanging as usual, but now you also can age simply by sticking the meat bags in a refrigerator for 5 days. Just my 1 cents. The simpler, the less gear required, the better ... my motto. But even with a cart, you're using muscle power, and I applaud you. Dave